Assembly for monitoring a landfill and a method of locating leak

Details Assembly for monitoring a landfill and a method of locating leak Assembly for monitoring a landfill and a method of locating leak

1994-10-24

1996-11-05

Taylor, Dennis L.

Hydraulic and earth engineering

Subterranean waste disposal, containment, or treatment

With treatment of waste

405128, 588259, 588260, B09B 300, A62D 300

Patent

active

055709745

ABSTRACT:
The monitoring assembly for a landfill or garbage dump comprises two sensor hoses, which are laid on both sides of a sealing liner parallel to each other. A transport medium can flow through the sensor hoses in the same or in opposite directions. First and second indicator signals are determined with the aid of at least one detector. The indicator signals indicate the presence of a pollutant in the transport medium and thus in the relevant sensor hose. These signals are logically combined with each other, with regard to location, preferably subtracted from each other. The resulting signal distinctly shows an extreme value in its curve as soon as a leak is present in the sealing liner. The position can be easily determined from that graphic representation.

REFERENCES:
patent: 3586624 (1971-06-01), Larson
patent: 3977233 (1976-08-01), Issel
patent: 4335978 (1982-06-01), Mutch
patent: 4430021 (1984-02-01), Wagner et al.
patent: 4526615 (1985-07-01), Johnson
patent: 4846604 (1989-07-01), Holtmann
patent: 4900195 (1990-02-01), Schlutter et al.
patent: 5076728 (1991-12-01), Golding
patent: 5127771 (1992-07-01), Wind
patent: 5261764 (1993-11-01), Walles
Siemens prospectus "Long-Term Monitoring of Landfills with LEOS".

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